Struct matrix_sdk_base::UInt

pub struct UInt(_);

An integer limited to the range of non-negative integers that can be represented exactly by an f64.

Implementations

impl UInt

pub const MIN: UInt

The smallest value that can be represented by this integer type.

Examples

Basic usage:

assert_eq!(UInt::MIN, uint!(0));

pub const MAX: UInt

The largest value that can be represented by this integer type.

Examples

Basic usage:

assert_eq!(UInt::MAX, UInt::try_from(9_007_199_254_740_991u64).unwrap());

#[must_use]pub fn new(val: u64) -> Option<UInt>

Try to create a UInt from the provided u64, returning None if it is larger than MAX_SAFE_UINT.

This is the same as the TryFrom<u64> implementation for UInt, except that it returns an Option instead of a Result.

Examples

Basic usage:

assert_eq!(UInt::new(js_int::MAX_SAFE_UINT), Some(UInt::MAX));
assert_eq!(UInt::new(js_int::MAX_SAFE_UINT + 1), None);

#[must_use]pub fn new_wrapping(val: u64) -> UInt

Create a UInt from the provided u64, wrapping at MAX_SAFE_UINT.

Examples

Basic usage:

assert_eq!(UInt::new_wrapping(js_int::MAX_SAFE_UINT), UInt::MAX);
assert_eq!(UInt::new_wrapping(js_int::MAX_SAFE_UINT + 1), uint!(0));

#[must_use]pub const fn min_value() -> UInt

👎 Deprecated:

Use UInt::MIN instead.

Returns the smallest value that can be represented by this integer type.

Examples

Basic usage:

assert_eq!(UInt::min_value(), uint!(0));

#[must_use]pub const fn max_value() -> UInt

👎 Deprecated:

Use UInt::MAX instead.

Returns the largest value that can be represented by this integer type.

Examples

Basic usage:

assert_eq!(UInt::max_value(), UInt::try_from(9_007_199_254_740_991u64).unwrap());

#[must_use]pub fn is_power_of_two(self) -> bool

Returns true if and only if self == 2^k for some k.

Examples

Basic usage:

assert!(uint!(16).is_power_of_two());
assert!(!uint!(10).is_power_of_two());

#[must_use]pub fn checked_next_power_of_two(self) -> Option<UInt>

Returns the smallest power of two greater than or equal to n. If the next power of two is greater than the type's maximum value, None is returned, otherwise the power of two is wrapped in Some.

Examples

Basic usage:

assert_eq!(uint!(2).checked_next_power_of_two(), Some(uint!(2)));
assert_eq!(uint!(3).checked_next_power_of_two(), Some(uint!(4)));
assert_eq!(UInt::MAX.checked_next_power_of_two(), None);

pub fn from_str_radix(src: &str, radix: u32) -> Result<UInt, ParseIntError>

Converts a string slice in a given base to an integer.

The string is expected to be an optional + sign followed by digits. Leading and trailing whitespace represent an error. Digits are a subset of these characters, depending on radix:

• 0-9
• a-z
• A-Z

Panics

This function panics if radix is not in the range from 2 to 36.

Examples

Basic usage:

assert_eq!(UInt::from_str_radix("A", 16), Ok(uint!(10)));

#[must_use]pub fn checked_add(self, rhs: UInt) -> Option<UInt>

Checked integer addition. Computes self + rhs, returning None if overflow occurred.

assert_eq!(
    (UInt::MAX - uint!(2)).checked_add(uint!(1)),
    Some(UInt::MAX - uint!(1))
);
assert_eq!((UInt::MAX - uint!(2)).checked_add(uint!(3)), None);

#[must_use]pub fn checked_sub(self, rhs: UInt) -> Option<UInt>

Checked integer subtraction. Computes self - rhs, returning None if overflow occurred.

Examples

Basic usage:

assert_eq!(uint!(1).checked_sub(uint!(1)), Some(uint!(0)));
assert_eq!(uint!(0).checked_sub(uint!(1)), None);

#[must_use]pub fn checked_mul(self, rhs: UInt) -> Option<UInt>

Checked integer multiplication. Computes self * rhs, returning None if overflow occurred.

Examples

Basic usage:

assert_eq!(uint!(5).checked_mul(uint!(1)), Some(uint!(5)));
assert_eq!(UInt::MAX.checked_mul(uint!(2)), None);

#[must_use]pub fn checked_div(self, rhs: UInt) -> Option<UInt>

Checked integer division. Computes self / rhs, returning None if rhs == 0.

Examples

Basic usage:

assert_eq!(uint!(128).checked_div(uint!(2)), Some(uint!(64)));
assert_eq!(uint!(1).checked_div(uint!(0)), None);

#[must_use]pub fn checked_rem(self, rhs: UInt) -> Option<UInt>

Checked integer remainder. Computes self % rhs, returning None if rhs == 0.

Examples

Basic usage:

assert_eq!(uint!(5).checked_rem(uint!(2)), Some(uint!(1)));
assert_eq!(uint!(5).checked_rem(uint!(0)), None);

#[must_use]pub fn checked_neg(self) -> Option<UInt>

Checked negation. Computes -self, returning None unless self == 0.

Note that negating any positive integer will overflow.

Examples

Basic usage:

assert_eq!(uint!(0).checked_neg(), Some(uint!(0)));
assert_eq!(uint!(1).checked_neg(), None);

#[must_use]pub fn checked_pow(self, exp: u32) -> Option<UInt>

Checked exponentiation. Computes self.pow(exp), returning None if overflow or underflow occurred.

Examples

Basic usage:

assert_eq!(uint!(0).checked_pow(2), Some(uint!(0)));
assert_eq!(uint!(8).checked_pow(2), Some(uint!(64)));
assert_eq!(uint!(1_000_000_000u32).checked_pow(2), None);
assert_eq!(UInt::MAX.checked_pow(2), None);

#[must_use]pub fn saturating_add(self, rhs: UInt) -> UInt

Saturating integer addition. Computes self + rhs, saturating at the numeric bounds instead of overflowing.

Examples

Basic usage:

assert_eq!(uint!(100).saturating_add(uint!(1)), uint!(101));
assert_eq!(UInt::MAX.saturating_add(uint!(1)), UInt::MAX);

#[must_use]pub fn saturating_sub(self, rhs: UInt) -> UInt

Saturating integer subtraction. Computes self - rhs, saturating at the numeric bounds instead of underflowing.

Examples

Basic usage:

assert_eq!(uint!(100).saturating_sub(uint!(1)), uint!(99));
assert_eq!(uint!(1).saturating_sub(uint!(2)), uint!(0));

#[must_use]pub fn saturating_mul(self, rhs: UInt) -> UInt

Saturating integer multiplication. Computes self * rhs, saturating at the numeric bounds instead of overflowing.

Examples

Basic usage:

assert_eq!(uint!(100).saturating_mul(uint!(2)), uint!(200));
assert_eq!(UInt::MAX.saturating_mul(uint!(2)), UInt::MAX);
assert_eq!(UInt::MAX.saturating_mul(UInt::MAX), UInt::MAX);

#[must_use]pub fn saturating_pow(self, exp: u32) -> UInt

Saturating integer exponentiation. Computes self.pow(exp), saturating at the numeric bounds instead of overflowing or underflowing.

Examples

Basic usage:

assert_eq!(uint!(5).saturating_pow(2), uint!(25));
assert_eq!(UInt::MAX.saturating_pow(2), UInt::MAX);

Trait Implementations

impl Add<UInt> for UInt

type Output = UInt

The resulting type after applying the + operator.

pub fn add(self, rhs: UInt) -> UInt

Performs the + operation.

impl AddAssign<UInt> for UInt

pub fn add_assign(&mut self, other: UInt)

Performs the += operation.

impl Clone for UInt

pub fn clone(&self) -> UInt

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for UInt

impl Debug for UInt

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for UInt

pub fn default() -> UInt

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for UInt

pub fn deserialize<D>(
    deserializer: D
) -> Result<UInt, <D as Deserializer<'de>>::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for UInt

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Div<UInt> for UInt

type Output = UInt

The resulting type after applying the / operator.

pub fn div(self, rhs: UInt) -> UInt

Performs the / operation.

impl DivAssign<UInt> for UInt

pub fn div_assign(&mut self, other: UInt)

Performs the /= operation.

impl Eq for UInt

impl From<UInt> for i128

pub fn from(val: UInt) -> i128

Performs the conversion.

impl From<UInt> for u128

pub fn from(val: UInt) -> u128

Performs the conversion.

impl From<UInt> for u64

pub fn from(val: UInt) -> u64

Performs the conversion.

impl From<UInt> for Int

pub fn from(val: UInt) -> Int

Performs the conversion.

impl From<UInt> for f64

pub fn from(val: UInt) -> f64

Performs the conversion.

impl From<UInt> for i64

pub fn from(val: UInt) -> i64

Performs the conversion.

impl From<UInt> for RoomMemberCountIs

pub fn from(x: UInt) -> RoomMemberCountIs

Performs the conversion.

impl From<u16> for UInt

pub fn from(val: u16) -> UInt

Performs the conversion.

impl From<u32> for UInt

pub fn from(val: u32) -> UInt

Performs the conversion.

impl From<u8> for UInt

pub fn from(val: u8) -> UInt

Performs the conversion.

impl FromStr for UInt

type Err = ParseIntError

The associated error which can be returned from parsing.

pub fn from_str(src: &str) -> Result<UInt, <UInt as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for UInt

pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Mul<UInt> for UInt

type Output = UInt

The resulting type after applying the * operator.

pub fn mul(self, rhs: UInt) -> UInt

Performs the * operation.

impl MulAssign<UInt> for UInt

pub fn mul_assign(&mut self, other: UInt)

Performs the *= operation.

impl Ord for UInt

pub fn cmp(&self, other: &UInt) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<UInt> for UInt

pub fn eq(&self, other: &UInt) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &UInt) -> bool

This method tests for !=.

impl PartialOrd<UInt> for UInt

pub fn partial_cmp(&self, other: &UInt) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

pub fn lt(&self, other: &UInt) -> bool

This method tests less than (for self and other) and is used by the < operator.

pub fn le(&self, other: &UInt) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

pub fn gt(&self, other: &UInt) -> bool

This method tests greater than (for self and other) and is used by the > operator.

pub fn ge(&self, other: &UInt) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> Product<&'a UInt> for UInt

pub fn product<I>(iter: I) -> UInt where
    I: Iterator<Item = &'a UInt>, 

Method which takes an iterator and generates Self from the elements by multiplying the items.

impl Product<UInt> for UInt

pub fn product<I>(iter: I) -> UInt where
    I: Iterator<Item = UInt>, 

Method which takes an iterator and generates Self from the elements by multiplying the items.

impl RangeBounds<UInt> for RoomMemberCountIs

pub fn start_bound(&self) -> Bound<&UInt>

Start index bound.

pub fn end_bound(&self) -> Bound<&UInt>

End index bound.

pub fn assert_len(self, len: usize) -> Range<usize> where
    Self: RangeBounds<usize>, 

🔬 This is a nightly-only experimental API. (range_bounds_assert_len)

Performs bounds-checking of this range.

pub fn contains<U>(&self, item: &U) -> bool where
    T: PartialOrd<U>,
    U: PartialOrd<T> + ?Sized, 

Returns true if item is contained in the range.

impl Rem<UInt> for UInt

type Output = UInt

The resulting type after applying the % operator.

pub fn rem(self, rhs: UInt) -> UInt

Performs the % operation.

impl RemAssign<UInt> for UInt

pub fn rem_assign(&mut self, other: UInt)

Performs the %= operation.

impl Serialize for UInt

pub fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for UInt

impl StructuralPartialEq for UInt

impl Sub<UInt> for UInt

type Output = UInt

The resulting type after applying the - operator.

pub fn sub(self, rhs: UInt) -> UInt

Performs the - operation.

impl SubAssign<UInt> for UInt

pub fn sub_assign(&mut self, other: UInt)

Performs the -= operation.

impl<'a> Sum<&'a UInt> for UInt

pub fn sum<I>(iter: I) -> UInt where
    I: Iterator<Item = &'a UInt>, 

Method which takes an iterator and generates Self from the elements by "summing up" the items.

impl Sum<UInt> for UInt

pub fn sum<I>(iter: I) -> UInt where
    I: Iterator<Item = UInt>, 

Method which takes an iterator and generates Self from the elements by "summing up" the items.

impl TryFrom<UInt> for u16

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: UInt) -> Result<u16, TryFromIntError>

Performs the conversion.

impl TryFrom<UInt> for u32

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: UInt) -> Result<u32, TryFromIntError>

Performs the conversion.

impl TryFrom<UInt> for u8

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: UInt) -> Result<u8, TryFromIntError>

Performs the conversion.

impl TryFrom<i128> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: i128) -> Result<UInt, TryFromIntError>

Performs the conversion.

impl TryFrom<i16> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: i16) -> Result<UInt, TryFromIntError>

Performs the conversion.

impl TryFrom<i32> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: i32) -> Result<UInt, TryFromIntError>

Performs the conversion.

impl TryFrom<i64> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: i64) -> Result<UInt, TryFromIntError>

Performs the conversion.

impl TryFrom<i8> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: i8) -> Result<UInt, TryFromIntError>

Performs the conversion.

impl TryFrom<u128> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: u128) -> Result<UInt, TryFromIntError>

Performs the conversion.

impl TryFrom<u64> for UInt

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(val: u64) -> Result<UInt, TryFromIntError>

Performs the conversion.